Reinforcing steel bar sleeve grouting device

Abstract

The utility model discloses a reinforcing steel bar sleeve grouting device and relates to the technical field of sleeve grouting, the reinforcing steel bar sleeve grouting device comprises a sleeve, a fastening head, a connecting piece and a first fastening piece, the fastening head is cylindrical, a plurality of anti-skid grooves are formed in the side end face of the fastening head, a through opening is formed in the middle of the fastening head, and the connecting piece and the first fastening piece are arranged on the lower top face of the fastening head. And the total diameter of the connecting piece is smaller than that of the fastening head. The first fastening piece is arranged in the connecting piece and axially collinear. External threads are arranged on the outer wall of the connecting piece, and internal threads are arranged at the matching part of the inner wall of the sleeve and the connecting piece. The first fastener is annular, and an annular groove is formed between the outer wall and the inner wall of the first fastener. A gap is formed between the first fastening piece and the connecting piece; through cooperation of the annular groove in the first fastening piece and the extrusion piece, the first fastening piece can be expanded inwards and outwards, extrudes a reinforcing steel bar body inwards and extrudes a connecting piece outwards, the reinforcing steel bar is more fastened in the sleeve, and the anti-vibration function that the sleeve is matched with other parts in a threaded mode is added.

Description

Technical Field

[0001] The invention relates to the technical field of sleeve grouting, and in particular to a steel bar sleeve grouting device. Background Art

[0002] Among steel bar connections, there are binding lap joints, welding connections and mechanical connections, among which sleeve connection is a mechanical connection.

[0003] Publication No. CN114108955B discloses a steel bar connection grouting sleeve, comprising: a sleeve body, a steel bar body, a grouting pipe and a grouting pipe, wherein the grouting pipe and the grouting pipe are both fixedly connected to the surface of the sleeve body, and the grouting pipe and the grouting pipe are both communicated with the sleeve body, and the steel bar body is movably connected to the inner wall of the sleeve body, and the inner wall of the sleeve body is fixedly connected with a first limit plate. The steel bar connection grouting sleeve is provided with a first threaded tube, a fixed plate, an elastic clamp, a positioning tube and a positioning ring. After the steel bar body is inserted into the sleeve, the rotating ring is rotated, and the rotating ring drives the positioning tube to rotate. The positioning tube is threadedly connected to the inner wall of the first threaded tube, and the positioning tube drives the positioning ring to press against the elastic clamp, and the elastic clamp is pressed against the surface of the steel bar body. The steel bar body is clamped by the elastic clamps on both sides of the steel bar body to fix the position of the steel bar body.

[0004] However, during the actual use of the above solution, the cooperation between the positioning tube and the first threaded tube fails to achieve a good vibration-proof loosening effect in a vibrating environment, which indirectly leads to a loose clamping of the steel bar body. Summary of the invention

[0005] The present application provides a steel bar sleeve grouting device, which solves the technical problems in the prior art that the steel bar is easy to shake inside the sleeve and the threaded fit of the sleeve internal parts is loosened due to vibration. The steel bar is tightened inside the sleeve and the anti-vibration function of the threaded fit of the sleeve internal parts is increased.

[0006] The present application provides a steel sleeve grouting device, comprising a fastening assembly arranged on the sleeve and a feed port and a discharge port positioned on the outer wall of the sleeve.

[0007] The fastening assembly includes a fastening head, a connecting piece, a first fastening piece, an extruding piece, a supporting piece, and a second fastening piece;

[0008] The fastening head is cylindrical, and a plurality of anti-slip grooves are provided on the side end surface. A through hole is provided in the middle of the fastening head for the steel bar body to pass through, and the diameter of the through hole is equal to the diameter of the steel bar body;

[0009] A connecting piece and a first fastening piece are disposed on the lower top surface of the fastening head;

[0010] Furthermore, the connecting piece is an annular structure, and the overall diameter of the connecting piece is smaller than the overall diameter of the fastening head;

[0011] Furthermore, the first fastener is inside the connecting member, and the first fastener and the connecting member are axially colinear;

[0012] Preferably, there is a certain gap between the first fastener and the connecting member, and the gap is smaller than the wall thickness of the first fastener;

[0013] Furthermore, the outer wall of the connecting piece is provided with an external thread;

[0014] Furthermore, an internal thread is provided at the position where the inner wall of the sleeve and the connecting piece cooperate, and the coverage area of ​​the internal thread is equal to the coverage area of ​​the external thread of the connecting piece;

[0015] Furthermore, the external thread of the connecting piece is threadably matched with the internal thread of the inner wall of the sleeve;

[0016] Preferably, the first fastener is an annular structure with an annular groove between the outer wall and the inner wall and has a certain elasticity;

[0017] Preferably, a through hole is provided in the middle of the first fastener for the steel bar body to pass through, and the diameter of the through hole is larger than the diameter of the through hole in the middle of the fastening head;

[0018] Furthermore, the diameter of the annular groove of the first fastener is equal from the bottom to the top;

[0019] Support members are symmetrically arranged at one quarter of the upper end and the lower end of the inner wall of the sleeve;

[0020] A second fastener is disposed on the end surface of the support member, and the second fastener is axially colinear with the support member;

[0021] Furthermore, the second fastener is a semicircular ring structure and has a certain elasticity;

[0022] Furthermore, the second fastener is smaller than the diameter of the through hole provided in the middle of the fastening head for the steel bar body to pass through;

[0023] The extrusion member is placed on the top surface of the support member;

[0024] Further, the extrusion piece is an annular structure;

[0025] Preferably, the wall thickness of the extrusion gradually decreases from the bottom to the top;

[0026] Furthermore, the top wall thickness of the extruded member is equal to the opening diameter of the annular groove of the first fastener;

[0027] The feed inlet is disposed at the lower portion of the outer wall of the sleeve;

[0028] The discharge port is disposed on the upper portion of the outer wall of the sleeve;

[0029] Preferably, the opening end of the annular groove of the first fastener is thick outside and thin inside, and the opening end has a certain curvature;

[0030] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0031] By adopting the cooperation between the annular groove on the first fastener and the extrusion piece, the first fastener is stretched inward and outward, the steel bar body is squeezed inward, and the connecting piece is squeezed outward, which effectively solves the technical problems in the prior art that the steel bar is easy to shake inside the sleeve and the threaded cooperation of the parts inside the sleeve is loosened due to vibration, thereby achieving a tighter tightening of the steel bar inside the sleeve and increasing the anti-vibration function of the threaded cooperation between the sleeve and other parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of the steel bar sleeve grouting device of the present invention;

[0033] Figure 2 It is a schematic diagram of the structure of the fastening assembly of the steel sleeve grouting device of the present invention;

[0034] Figure 3 It is a schematic structural diagram of a first fastener of the steel bar sleeve grouting device of the present invention;

[0035] Figure 4 It is a schematic structural diagram of the annular groove of the first fastener of the steel sleeve grouting device of the present invention;

[0036] In the figure: a steel bar body 1, a fastening head 2, a connecting piece 3, a sleeve 4, a feed port 5, a discharge port 6, a first fastener 7, an extrusion piece 8, a support piece 9, and a second fastener 10. DETAILED DESCRIPTION

[0037] To facilitate the understanding of the present invention, the present application will be described more comprehensively below with reference to the relevant drawings; the drawings show preferred embodiments of the present invention, but the present invention can be implemented in many different forms and is not limited to the embodiments described herein; on the contrary, the purpose of providing these embodiments is to enable a more thorough and comprehensive understanding of the disclosed content of the present invention.

[0038] It should be noted that the terms “vertical”, “horizontal”, “up”, “down”, “left”, “right” and similar expressions used in this document are only for illustrative purposes and do not represent the only implementation method.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs; the terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0040] Embodiment 1: Figure 1 As shown in FIG3 , the steel sleeve grouting device of the present application includes a fastening assembly provided on the sleeve 4 and a feed port 5 and a discharge port 6 located on the outer wall of the sleeve.

[0041] The fastening assembly includes a fastening head 2, a connecting member 3, a first fastening member 7, an extruding member 8, a supporting member 9 and a second fastening member 10;

[0042] The fastening head 2 is cylindrical, and a plurality of anti-slip grooves are provided on the side end surface. A through hole is provided in the middle of the fastening head 2 for the steel bar body 1 to pass through, and the diameter of the through hole is equal to the diameter of the steel bar body 1;

[0043] The lower top surface of the fastening head 2 is provided with a connecting piece 3 and a first fastening piece 7;

[0044] Furthermore, the connecting member 3 is an annular structure, and the total diameter of the connecting member is smaller than the total diameter of the fastening head 2;

[0045] Furthermore, the first fastener 7 is inside the connecting member 3, and the first fastener 7 and the connecting member 3 are axially colinear;

[0046] Preferably, there is a certain gap between the first fastener 7 and the connecting member 3, and the gap is smaller than the wall thickness of the first fastener 7;

[0047] Furthermore, the outer wall of the connecting member 3 is provided with an external thread;

[0048] Furthermore, an internal thread is provided at the position where the inner wall of the sleeve 4 and the connector 3 cooperate, and the coverage area of ​​the internal thread is equal to the coverage area of ​​the external thread of the connector 3;

[0049] Furthermore, the external thread on the outer wall of the connector 3 is threadably matched with the internal thread on the inner wall of the sleeve 4;

[0050] Preferably, the first fastener 7 is an annular structure with an annular groove between the outer wall and the inner wall and has a certain elasticity;

[0051] Furthermore, a through hole is provided in the middle of the first fastener 7 for the steel bar body 1 to pass through, and the diameter of the through hole is larger than the diameter of the through hole in the middle of the fastening head 2;

[0052] Furthermore, the diameter of the annular groove of the first fastener 7 is equal from the bottom to the top;

[0053] Support members 9 are symmetrically arranged at one quarter of the upper end and the lower end of the inner wall of the sleeve 4;

[0054] The end surface of the support member 9 is provided with a second fastener 10, and the second fastener 10 is axially colinear with the support member 9;

[0055] Furthermore, the second fastener 10 is a semicircular ring structure and has a certain elasticity;

[0056] Furthermore, the second fastener 10 is smaller than the diameter of the through hole provided in the middle of the fastening head 2 for the steel bar body 1 to pass through;

[0057] The extrusion member 8 is placed on the top surface of the support member 9;

[0058] Further, the extrusion member 8 is an annular structure;

[0059] Preferably, the wall thickness of the extruded member 8 gradually decreases from the bottom to the top;

[0060] Furthermore, the top wall thickness of the extruded member 8 is equal to the opening diameter of the annular groove of the first fastener 7;

[0061] The feed port 5 is placed at the lower part of the outer wall of the sleeve 1;

[0062] The discharge port 6 is disposed on the upper portion of the outer wall of the sleeve 4;

[0063] Specific implementation: first, insert the steel bar body 1 into the lower end of the sleeve 4. When the steel bar body 1 contacts the second fastener 10, the second fastener 10 squeezes the steel bar body 1. By rotating the fastening head 2, the thread of the outer wall of the connecting member 3 is threadedly matched with the thread of the inner wall of the sleeve 4, and the connecting member 3 is rotated a certain distance until the first fastener 7 is matched with the extrusion member 8. Because there is a certain gap between the first fastener 7 and the connecting member 3, and there is also a gap between the first fastener 7 and the steel bar body 1, when the extrusion member 8 squeezes the first fastener 7, the first fastener 7 is stretched toward the steel bar body 1 and the connecting member 3 for extrusion and tightening. After fixing, insert another steel bar body 1 into the upper end of the sleeve 4, and repeat the above steps to tighten the steel bar body 1 at the upper end.

[0064] Beneficial effect: The first fastener 7 is squeezed by the extrusion piece 8 so that the first fastener 7 is stretched toward the steel bar body 1 and the connecting piece 3 respectively, which not only fastens the steel bar body 1, but also has the effect of preventing the threaded fit between the connecting piece 3 and the sleeve 4 from loosening due to vibration.

[0065] Embodiment 2: Because there is still room for improvement in embodiment 1, there is still the problem that when the first fastener 7 rotates and cooperates with the extrusion member 8, the first fastener 7 and the extrusion member 8 will get stuck or the cooperation is not smooth, which will affect the subsequent grouting work, so the first fastener 7 component is further improved.

[0066] like Figure 4 As shown, the opening end of the annular groove of the first fastener 7 is designed to be thick outside and thin inside, and the opening end has a certain curvature;

[0067] When the first fastener 7 rotates and cooperates with the extrusion member 8, because the opening end of the annular groove of the first fastener 7 is designed to be thick on the outside and thin on the inside, and the opening end has a certain curvature, there will be no problem of the cooperation position being stuck or the cooperation being not smooth when the first fastener 7 and the extrusion member 8 cooperate.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A steel sleeve grouting device, characterized in that: It comprises a steel bar body (1), a sleeve (4), a fastening head (2), a connecting piece (3) and a first fastening piece (7); The fastening head (2) is cylindrical, and has a plurality of anti-slip grooves on its side end surface, and a through opening is provided in the middle of the fastening head (2); The steel bar body (1) passes through a through opening provided in the middle of the fastening head; A connecting piece (3) and a first fastening piece (7) are disposed on the lower top surface of the fastening head (2); the connecting piece (3) is an annular structure, and the total diameter of the connecting piece (3) is smaller than the total diameter of the fastening head (2); The first fastener (7) is inside the connecting member (3), and the first fastener (7) and the connecting member (3) are axially colinear; The outer wall of the connecting piece (3) is provided with an external thread, and the inner wall of the sleeve (4) is provided with an internal thread at the position where it cooperates with the connecting piece (3), and the coverage area of ​​the internal thread is equal to the coverage area of ​​the external thread of the connecting piece (3); The first fastener (7) is an annular structure with an annular groove between the outer wall and the inner wall, and is elastic; There is a certain gap between the first fastener (7) and the connecting member (3), and the gap is smaller than the wall thickness of the first fastener (7); The through-opening diameter of the first fastener (7) is larger than the through-opening diameter of the middle portion of the fastening head (2).

2. A steel sleeve grouting device as claimed in claim 1, characterized in that: The sleeve (4) further comprises support members (9) symmetrically arranged at the upper end and the lower end of the inner wall, respectively, and the support members (9) are annular structures.

3. A steel sleeve grouting device as claimed in claim 2, characterized in that: The support member (9) further comprises an extrusion member (8) provided on the upper top surface, the extrusion member (8) being an annular structure, the wall thickness of the extrusion member (8) gradually decreasing from the bottom to the top, and the top wall thickness of the extrusion member (8) being equal to the opening diameter of the annular groove of the first fastener (7).

4. A steel sleeve grouting device as claimed in claim 1, characterized in that: The opening end of the annular groove of the first fastener (7) is thick on the outside and thin on the inside, and the opening end of the first fastener (7) has a certain curvature.

5. A steel sleeve grouting device as claimed in claim 2, characterized in that: The support member (9) further comprises a second fastener (10) provided on the side end surface, the second fastener (10) being a semicircular ring structure, the second fastener (10) being axially colinear with the support member (9), and the caliber of the second fastener (10) being smaller than the caliber of the through opening provided in the middle of the fastening head (2).

6. A steel sleeve grouting device as claimed in claim 1, characterized in that: The lower end of the outer wall of the sleeve (4) also includes a feed opening (5).

7. A steel sleeve grouting device as claimed in claim 1, characterized in that: The upper end of the outer wall of the sleeve (4) also includes a discharge port (6).

Images